745650773 has 4 divisors (see below), whose sum is σ = 852172320. Its totient is φ = 639129228.

The previous prime is 745650769. The next prime is 745650779. The reversal of 745650773 is 377056547.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 745650773 - 2² = 745650769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745650779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53260763 + ... + 53260776.

It is an arithmetic number, because the mean of its divisors is an integer number (213043080).

Almost surely, 2^745650773 is an apocalyptic number.

It is an amenable number.

745650773 is a deficient number, since it is larger than the sum of its proper divisors (106521547).

745650773 is a wasteful number, since it uses less digits than its factorization.

745650773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106521546.

The product of its (nonzero) digits is 617400, while the sum is 44.

The square root of 745650773 is about 27306.6067646641. The cubic root of 745650773 is about 906.8006528817.

The spelling of 745650773 in words is "seven hundred forty-five million, six hundred fifty thousand, seven hundred seventy-three".